Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2009-02-02
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
14 pages, First V V Narlikar Memorial Lecture delivered on 23 January, 2009 at Jamia Millia Islamia, Ne Delhi
Scientific paper
We perceive the dimension of physical spacetime we live in through physical experiments and hence it is pertinent to probe the dimension in which the fundamental physical forces exist and act? In this context we shall investigate the two classical fields of gravitation and electromagnetism and argue that four dimension is necessary for spacetime but may not be sufficient. Some motivation for higher dimension would also be discussed.
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